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排 水 管 : 712 phrases in 30 subjects |
Agriculture | 32 |
Animal husbandry | 1 |
Architecture | 14 |
Automobiles | 2 |
Aviation | 7 |
Bridge construction | 6 |
Compressors | 1 |
Construction | 3 |
Desert science | 1 |
Drilling | 2 |
Ecology | 20 |
Electronics | 10 |
Engineering geology | 18 |
General | 8 |
Hydraulics | 12 |
Hydroelectric power stations | 50 |
Hydrology | 1 |
Metallurgy | 8 |
Nautical | 7 |
Oil / petroleum | 6 |
Plastics | 5 |
Rail transport | 12 |
Refrigeration | 1 |
Scuba diving | 1 |
Shipbuilding | 9 |
Submarines | 2 |
Technology | 463 |
Textile industry | 1 |
Water resources | 8 |
Wind Energy | 1 |